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* Make pg_get_ruledef() parenthesize negative constants (Tom)
Before this fix, a negative constant in a view or rule might be
dumped as, say, -42::integer, which is subtly incorrect: it should
be (-42)::integer due to operator precedence rules. Usually this
would make little difference, but it could interact with another
recent patch to cause PostgreSQL to reject what had been a valid
"SELECT DISTINCT" view query. Since this could result in pg_dump
output failing to reload, it is being treated as a high-priority
fix. The only released versions in which dump output is actually
incorrect are 8.3.1 and 8.2.7.
* Make "ALTER AGGREGATE ... OWNER TO" update pg_shdepend (Tom)
This oversight could lead to problems if the aggregate was later
involved in a "DROP OWNED" or "REASSIGN OWNED" operation.
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* Fix character string comparison for Windows locales that consider
different character combinations as equal
* Repair corner-case bugs in "VACUUM FULL"
* Fix misbehavior of foreign key checks involving character or bit
columns
* Avoid needless deadlock failures in no-op foreign-key checks
* Fix possible core dump when re-planning a prepared query
* Fix possible failure when re-planning a query that calls an
SPI-using function
* Fix failure in row-wise comparisons involving columns of different
datatypes
* Fix longstanding "LISTEN"/"NOTIFY" race condition
* Disallow "LISTEN" and "UNLISTEN" within a prepared transaction
* Disallow dropping a temporary table within a prepared transaction
* Fix rare crash when an error occurs during a query using a hash
index
* Fix incorrect comparison of tsquery values
* Fix incorrect behavior of LIKE with non-ASCII characters in
single-byte encodings
* Disable xmlvalidate
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newer versions, as done in other versions of PostgreSQL packages. This gives
a performance improvement on client-side, especially on NetBSD -current.
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With significant new functionality and performance enhancements, this
release represents a major leap forward for PostgreSQL. This was made
possible by a growing community that has dramatically accelerated the
pace of development. This release adds the following major features:
* Full text search is integrated into the core database system
* Support for the SQL/XML standard, including new operators and an
XML data type
* Enumerated data types (ENUM)
* Arrays of composite types
* Universally Unique Identifier (UUID) data type
* Add control over whether NULLs sort first or last
* Updatable cursors
* Server configuration parameters can now be set on a per-function
basis
* User-defined types can now have type modifiers
* Automatically re-plan cached queries when table definitions change
or statistics are updated
* Numerous improvements in logging and statistics collection
* Support Security Service Provider Interface (SSPI) for
authentication on Windows
* Support multiple concurrent autovacuum processes, and other
autovacuum improvements
* Allow the whole PostgreSQL distribution to be compiled with
Microsoft Visual C++
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